The pathways of dynamic recrystallization in all-metal hip joints

Büscher, R.; Fischer, Alfons

doi:10.1016/j.wear.2005.02.036

Cited by 96 publications

(59 citation statements)

References 37 publications

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“…Examination of retrievals [9,10] have shown that the determining mechanisms of MoM joint degradation are complex and depend on a variety of interactions between mechanical, chemical, electrochemical and physical parameters. Clear evidence of wear and corrosion has been detected in explants [11] where metal debris was generated by the combined effect of these two degradation mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Mischler

Muñoz

2013

Wear

177

116

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a b s t r a c tA good biocompatibility, excellent mechanical properties and high corrosion resistance characterize CoCrMo alloys. Therefore they are widely used for artificial joints in biomedical implants. However, the degradation of the implants during service life leads to the release into the body of toxic ions and wear particles. This continuous degradation is of concern for long-term stability of the implants. Published literature has highlighted the relevance of lubrication as well as metallurgical and contact mechanical factors on the degradation of CoCrMo implant alloys. Recent experimental investigations have proposed tribocorrosion, i.e., the interplay of mechanical wear and corrosion by the body fluids, as one of the crucial degradation mechanism of implants. Tribocorrosion is sub-discipline of tribology and corrosion that recently made significant progresses in mechanistic understanding and modelling. The present work aims at evaluating published results on the degradation of CoCrMo alloys using existing tribocorrosion concepts. Results show that wear accelerated corrosion due to mechanical removal of the passive film during sliding is a major contribution to the overall degradation. Further, a transition from low (10 À 6 N/mm 3 m) to high (10 À 4 N/mm 3 m) wear coefficients was found at a threshold electrode potential close to 0.2 V SHE These findings clearly show that electrochemical phenomena play a key role on the tribological behaviour of biomedical CoCrMo alloy implants.

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Section: Introductionmentioning

confidence: 99%

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Mischler

Muñoz

2013

Wear

177

116

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“…During rubbing, metals usually undergo work hardening resulting in a hardness gradient from the surface to the bulk material [17]. The degree of hardening being difficult to predict, experimental determination of hardness is needed.…”

Section: Discussionmentioning

confidence: 99%

“…The interaction of synovial fluid with the bearing CoCrMo surfaces may lead to the formation of carbonaceous tribolayers formed by aggregated [13] or denatured proteins [8,17] that provide boundary lubrication. Unfortunately, up to date no formalism quantitatively relating wear to boundary lubrication is available.…”

Section: Existing Approaches For Wear Prediction Of Artificial Hip Jomentioning

confidence: 99%

Tribocorrosion of passive metals in the mixed lubrication regime: theoretical model and application to metal-on-metal artificial hip joints

Cao

Maldonado

Mischler

2015

Wear

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“…This layer can be generated by the steady strain field directly under the worn surface which brings about a constant sequence of deformation and recrystallisation. 26) And in their later works, 27) needle ¾-martensite and twin were found under the worn surface of Cr29Co6Mo alloy. The authors thought that these lattices defected reacted with each other under the high shear strain forming rhombic cell.…”

Section: Naturally Formed In Tribocorrosion Processmentioning

confidence: 96%

Tribocorrosion Behavior of Nanocrystalline Metals — a Review

Wang

Qiao

2015

Mater. Trans.

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Nanocrystalline metal materials with ultra fine grains have many special mechanical, physical and chemical properties. Tribocorrosion is a material degradation or transformation process due to the combined action of wear and corrosion. Nanocrystalline materials could be obtained by artificial preparation or tribological/tribocorrosion process. In this paper, studies about the wear, corrosion and tribocorrosion behavior of nanocrystalline metal materials are reviewed. Nanocrystallization could enhance the wear resistance of materials by increasing the hardness and decrease the corrosion rate by forming continuous and compact passive layer. And the nanocrystallization could also enhance the tribocorrosion resistance of materials mainly by increasing surface hardness and forming protective and lubricating surface layers.

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The pathways of dynamic recrystallization in all-metal hip joints

Cited by 96 publications

References 37 publications

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Tribocorrosion of passive metals in the mixed lubrication regime: theoretical model and application to metal-on-metal artificial hip joints

Tribocorrosion Behavior of Nanocrystalline Metals — a Review

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The pathways of dynamic recrystallization in all-metal hip joints

Cited by 96 publications

References 37 publications

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Wear of CoCrMo alloys used in metal-on-metal hip joints: A tribocorrosion appraisal

Tribocorrosion of passive metals in the mixed lubrication regime: theoretical model and application to metal-on-metal artificial hip joints

Tribocorrosion Behavior of Nanocrystalline Metals &mdash; a Review

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Tribocorrosion Behavior of Nanocrystalline Metals — a Review